Well, I did my first engine mod to my V this week. Installed Tim C's intake and MAF plug-in. Although the install was much more difficult than expected, the results are satisfying. No huge power increase with just the intake but that's expected. This will change with further mods and a good tune though. The sound is great and I like that you can really see the s/c with the OEM intake out of the way.
http://www.cadillacforums.com/forums/attachment.php?attachmentid=105578&stc=1&d=1364053710

Will post youtube link of 35mph roll-on if anybody cares to hear it.

Thanks to Tim for good turn around time, good customer service, and quick responses to questions and concerens. Looking forward to more Tim C upgrades in the future.